The grill is very effective. This means you need only a few coals (preferably pure charcoal – no briquettes!) For grilling. For heating, a small pile of coal is best formed on one side. If you prefer solid grill lighters put the coals on one side over the burning lighter. When the charcoal is burnt (white ash layer all around), you can spread it with a corner of the grill grate – then place the grill grate.
The grill should be filled to the upper edge of the openings on the narrow side.